Changes between Version 1 and Version 2 of buildroot

Timestamp:

12/07/2017 05:48:17 PM (7 years ago)

Author:

Tim Harvey

Comment:

added newport buildroot details

buildroot

@@ -44 +44 @@
 
 Make sure your kernel has the following:
- - CONFIG_DEVTMPFS=y, to get devtmpfs support, to provide a dynamic /dev
- - CONFIG_INITRAMFS_SOURCE="/path/to/buildroot/output/images/rootfs.cpio"
- - CONFIG_INITRAMFS_COMPRESSION_GZIP=y or some other compression algorithm
+ - CONFIG_DEVTMPFS=y - to get devtmpfs support, to provide a dynamic /dev
+ - CONFIG_INITRAMFS_SOURCE="/path/to/buildroot/output/images/rootfs.cpio" - path to your cpio
+ - CONFIG_INITRAMFS_COMPRESSION_GZIP=y - compression algorithm
+ - CONFIG_INITRAMFS_ROOT_UID=0 - root user id
+ - CONFIG_INITRAMFS_ROOT_GID=0 - root group id
+
 
 If using buildbot to build kernel add the following to automatically build a kernel using to buildroot rootfs as an initramfs:
@@ -62 +65 @@
 
 
+[=#newport]
+== Newport (CN80XX/CN81XX) ==
+The following details pertain to buildroot 2017.11 although newer versions will likely be similar if not the same.
+
+To configure buildroot for the Cavium CN80XX/CN81XX SoC found on the Newport product family:
+ * Target options -> Target Architecture -> AArch64 (little endian)
+ * Filesystem images -> tar the root filesystem -> Compression method (xz)
+ * Filesystem images -> cpio the root filesystem
+ * Filesystem images -> Compression method (xz)
+
+This builds a ~500KiB output/images/root.tar.xz in less than 5 minutes on a typical Linux desktop.
+ 
+If you also want buildroot to build a kernel provided from buildroot using the buildroot rootfs embedded as an initramfs then enable the following to create a kernel suitable for aarch64 and booting via U-Boot {{{booti}}}:
+ * Kernel -> Linux Kernel (BR2_LINUX_KERNEL)
+ * Kernel -> Kernel configuration (Using a custom (def)config file) -> newport_defconfig
+ * Filesystem images -> initial RAM filesystem linked into linux kernel
+
+Adding the kernel build produces a ~21MB Image in less than 10 minutes on a typical Linux desktop.
+
+To boot this on a Newport bootloader:
+{{{#!bash
+buildroot=tftpboot ${kernel_addr} newport/buildroot/Image && booti ${kernel_addr} - ${fdtcontroladdr}
+}}}
+
+Now you have a minimal Linux OS that booted in about 6 seconds.
+
+A prebuilt image can be found [http://dev.gateworks.com/buildroot/newport/minimal here] which contains:
+ * Linux 4.14 kernel with ThunderX periperhals enabled
+ * resize2fs (BR2_PACKAGE_E2FSPROGS_RESIZE2FS)
+ * screen (BR2_PACKAGE_SCREEN)
+ * pciutils (BR2_PACKAGE_PCIUTILS)
+ * libusb (BR2_PACKAGE_LIBUSB)
+ * eudev (BR2_PACKAGE_HAS_UDEV)
+ * usbutils (BR2_PACKAGE_USBUTILS) 
+ * disk partitioning tools
+
+[=#ventana]
 == Ventana (IMX6) ==
+The following details pertain to buildroot 2017.08 although newer versions will likely be similar if not the same.
+
 To configure buildroot for the i.MX6 SoC found on the Ventana product family:
  * Target options -> Target Architecture -> ARM (little endian)
@@ -70 +112 @@
  * Target options -> Floating point strategy (NEON) (BR2_ARM_FPU_NEON=y)
  * Filesystem images -> tar the root filesystem -> Compression method (xz)
- * Filesystem images -> initial RAM filesystem linked into linux kernel
 
-This builds a 500KiB output/images/rootfs.tar.xz in less than 5 minutes on a typical Linux desktop.
+This builds a ~500KiB output/images/rootfs.tar.xz in less than 5 minutes on a typical Linux desktop.
 
-If you also want buildroot to build a kernel using the buildroot rootfs embedded as an initramfs then enable the following to create a kernel suitable for imx_v6_v7 and booting via U-Boot {{{bootm}}}:
+If you also want buildroot to build a kernel provided from buildroot using the buildroot rootfs embedded as an initramfs then enable the following to create a kernel suitable for imx_v6_v7 and booting via U-Boot {{{bootm}}}:
  * Kernel -> Linux Kernel (BR2_LINUX_KERNEL)
  * Kernel -> Defconfig name (imx_v6_v7) (BR2_LINUX_KERNEL_DEFCONFIG)
@@ -80 +121 @@
  * Kernel -> load address (0x10008000) (BR2_LINUX_KERNEL_UIMAGE_LOADADDR)
  * Kernel -> Device Tree Source file names (imx6dl-gw54xx imx6q-gw54xx imx6dl-gw53xx imx6q-gw53xx imx6dl-gw52xx imx6q-gw52xx imx6dl-gw51xx imx6q-gw51xx imx6dl-gw551x imx6q-gw551x imx6dl-gw552x imx6q-gw552x imx6dl-gw553x imx6q-gw553x) (BR2_LINUX_KERNEL_INTREE_DTS_NAME)
+ * Filesystem images -> initial RAM filesystem linked into linux kernel
 
-Adding the kernel build produces a 6.1MB uImage in less than 10 minutes on a typical Linux desktop.
+Adding the kernel build produces a ~6MB uImage in less than 10 minutes on a typical Linux desktop.
 
 To boot this on a Ventana bootloader:
@@ -90 +132 @@
 Now you have a minimal Linux OS that booted in about 6 seconds.
 
-The prebuilt image of this can be found at: http://dev.gateworks.com/buildroot/ventana/minimal
+A prebuilt image of this can be found at: http://dev.gateworks.com/buildroot/ventana/minimal
 
 Additional tools: